You are allowed to upload 3 video's to either YouTube or Vimeo, you can do so all at once or over a period of time. You must not have more than 3 uploaded video's on either YouTube or Vimeo at any one time. You must seek permission to upload any video from SoundSpectrum first.
Regarding the SoundSpectrum credit you will need to contact SoundSpectrum.
You may be in breach of copyright laws if that is your intention, again, you should seek clarification from SoundSpectrum. Maybe you should have purchased a commercial license. If that's the case then SoundSpectrum would I am sure take into consideration the difference between the cost of a Platinum licence, and a commercial license.I would consider Aeon to be a tool to build something else, using titles, music, other software etc. Create something artistic, in a way.
http://www.soundspectrum.com/support/contact.html.